Adjustable truck-bearing.



No. 708,980. Patented Sept. l6, I902.

w. s. ADAMS. ADJUSTABLE TRUGK BEARING.

(Application filed. Mar. 7, 1902.)

(No Model.)

M6 Warm.

iiivrrnn STATES ATENT Fines.

WALTER S. ADAMS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO JOHN A.BRILL, OF PHILADELPHIA, PENNSYLVANIA.

ADJUSTABLE TRUCK-BEARING.

SPECIFICATION forming part of Letters Patent No. 708,980, datedSeptember 16, 1902.

Application filed March '7, 1902. Serial No. 97,052. (No model.)

To all whom it may concern:

Be it known that I, WALTER S. ADAMS, a citizen of the United States, anda resident of the city and county of Philadelphia, State ofPennsylvania, (and whose post-oflice address is care of the J. G. BrillCompany, Sixty-second street and WVoodland avenue, in said city,) haveinvented certain new and useful Improvements in AdjustableTruck-Bearings, of which the following is a specification.

My invention has relation to bearings employed on car-trucks, morespecifically the side bearings thereof which are carried by thetruck-bolster, and my improvements may be advantageously employed inconnection with the bearings which are companion to the truck sidebearings-mamely, car rubplates-or to the center bearing thereof.

I have illustrated my invention in connection with a truck side bearing;and the essential features of my invention reside in a hearing made intwo parts, the parts being vertically adjustable relatively to eachother, and means for locking the parts together in their position ofadjustment, whereby accommodation of the bearing for wear or for heightrelatively to the car may be readily provided, the

1 structure being strong and exceedingly simple and economical ofmanufacture.

My invention resides in the improved construction and combination ofparts hereinafter described and finally pointed out in the claims.

In the drawings forming part of this specification, Figure 1 is a sideelevation of the bearing shown in connection with a portion of aconventionally-constructed bolster, the bearing being partly in section.Fig. 2 is a plan view of the base of the bearing. Fig. 3 is a plan Viewof the entire bearing, and Fig. at is a side elevation thereof.

The bearing consists, primarily, of two parts, the base 1 and the head2,Which latter is adapted to be vertically adjusted relatively to thebase and locked in its position of adjustment. The'base, excepting theportion which receives the head, may be conventionally or otherwiseconstructed. In the present embodiment it consistsof a casting havingthe outwardly-extending flanges 3 inclined at an angle to the vertical,so as to permit it to be supported upon the inclined upper bar 4 of aconventionally-constructed bolster 5, and an annular upwardly-extendinghub or lug 6, within which is formed a dcpression 7, the interior ofwhich is screwthreaded, as at 8.

The bearing proper or head 2 comprises the flanged crown or wear plate9, and an interior threaded circularspindle 10, which is received withinthe depression 7, the thread 11 upon which the interiorly-formed thread8 of the hub engages with.

It is clear that by rotating the head it may be raised or loweredvertically for the purpose of taking up wear or for the purpose ofadjusting the weight to be carried on the bolster.

In order to prevent inadvertent movement on the part of the head and tolock the same in its relative position of adjustment, I have providedthe following means: The exterior rim of the hub is provided with arecess 12. The overlapping wear-plate is provided with a recess 13, inwhich the upper end of a latch 14 is pivoted by means of a pin 15passing through the flange and the latch. The latch is adapted to beswung into or out of contact with the recess 12 in the rim of the hub,and depth of this recess 12'should be so propor- 8o tioned that the faceend of the latch may have a bearing therein to prevent rotation of thehead at the maximum or minimum points of elevation or depressionthereof, and it is preferred that the end of the latch fit the sides ofthe recess snugly, so as to prevent it from being inadvertentlydisengaged. For this purpose any means may be employed as desired, suchas a cotter-pin passed through the wall of the rim and the end of thelatch.

I have shown the rim provided with two diametrically-located recesses 1212, so that the head may be locked against further rotation at everyhalf-turn; but it is clear that these recesses may be as many in numberas 5 desired and located so as to enable the head to be locked at anydesired point during its rotation, thereby making the possibility ofadjustment greater or smaller, as the needs of the constructor maydemand.

Having described my invention, I claim 1. The combination in an articleof the class described, of the base having an annular andinteriorly-threaded hub, a head comprising a Wear-plate, and a threadedstem engaging the interior thread of the said hub, and a lock extendingfrom said Wear-plate to said hub.

2. The combination in an article of the class described, of the basehaving an annular and interiorly-threaded and upwardly-extending hub, arecess formed in the outer surface, the head comprising the flangedwearplate and the exterior-threaded spindle engaging the interior threadof the rim, and the latch pivoted to the said Wear-plate, its free endbeing adapted to engage the said hub- The combination in an article ofthe class described, of a base comprising the rim, a depression formedWithin the rim, flanges extending from said rim, a screw thread formedinteriorly of the rim, the head comprising the flanged Wear-plate and anexteriorly-threaded spindle engaging the thread of the rim, the latchpivotally supported by said flange-plate, and a recess in the rim toreceive the free end of the latch.

Signed in the city and county of New York, State of New York, this 6thday of March, 1902.

WALTER S. ADAMS.

Witnesses:

CHAS. G. HENSLEY, SOPHIE SEKosKY.

